CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Net income	$ 336,732	$ 108,315	$ 1,397,766	$ 260,482
Other comprehensive (loss) - derivative instruments:
Unrealized holding (losses) arising during the period	9,523	(11,860)	12,337	(8,642)
Losses reclassified into earnings from other comprehensive income	3,826	3,640	12,098	7,203
Other comprehensive income - other instruments:
Unrealized holding gains arising during the period	501	118	928	82
Other comprehensive income – foreign currency:
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax	1,814	0	941	0
Other comprehensive income (loss)	15,664	(8,102)	26,304	(1,357)
Comprehensive income	352,396	100,213	1,424,070	259,125
Comprehensive (income) attributable to Noncontrolling Interests	(11,973)	(5,051)	(55,321)	(11,919)
Comprehensive income attributable to controlling interests	$ 340,423	$ 95,162	$ 1,368,749	$ 247,206